Sacramento daily record-union. [volume] (Sacramento [Calif.]) 1875-1891, 1887-04-25
THE SAN JOAQUIN VALLEY.
A Valuable Map Published by Engineer
VIM. Ham, Hall.

A Valuable Map Published by Engineer
VIM. Ham. Hall.
There has just been published by the
State Engineer, VIM. Ham, Hall, a new
map of the San Joaquin valley, which has
been made as replete with information as
the scale of publication would permit.
The map is a reduction by photo-litho-
graphy of the original map, which was
drawn on a scale of two miles to the inch.
1t is published on scale of three miles
to the inch in four sheets, of which the
first covers the vicinity of Stockton. the
second that of MERGED, the third that of
Fresno and Visalia, and the fourth the
region from Tule river, south to Bakers
field.
1t is fine exhibit of the Typographical
features of the valley. The foothills around
the valley are indicated by carefully exc
cuted hachuring. and are covered with a
tint of brown. The alignment of water
courses ami canals received especial atten-
ton, and no other map exists showing so
fully and accurately this class of informa-
ton in any part of the region covered. The
intricate network of rivers, creeks, sloughs
and canals in the Visalia district, those of
the Kings river country, and of the MERGED
district, as well as the drainage lines in
San Joaquin county, are here, for the first
time, correctly mapped.
This map is rendered especially valuable
by affording reliable key to the general
elevation of the ground in all parts of the
valley. Contour lines or lines of uniform
elevation are shown on it, generally twenty,
occasionally ten feet apart in vertical ele
walton. These are based on the results of
special surveys and careful compilation
OF data collated from every available source.
AT notable points along the main water
courses elevation of low water. of ordinary
high water and of extreme floods are given.
A concise history of Tulare lake is print
ed on the map.
The location of all artesian wells in San
joaquin valley is shown, together with
number Tor easy reference to the informa-
ton collected for each in the volume of
physical data, soon to be ready for distrib
ution.
On the map are shown in light red
tint the lands capable Of being irrigated
from large canals with water from the
streams entering the valley from the east.
In darker red tint the lands are indicated
which are at present covered with water
rights. Bottom lands are tinted green:
swamp and overfowed lands lighter green
irrigated lands blue, etc. making the effect of
the whole at once pleasing and very con-
venient for reference.
Here for the first time are designated on
map the irrigated lands of the Kern
river delta, the scattered tracts of irrigated
lands along Tule and Kaweah rivers, the
great extent of irrigation from Kings river.
helands commanded and those irrigated
by the canals on both sides of San Joaquin
river, the irrigations from MERGED river, etc
The map shows at a glance the great
possibilities for future extension of the
irrigation works in the valley and the de-
STABILITY of utilizing TO the fullest extent
possible the vast volumes of water which
flow to waste during the annual high
stages of the rivers.